Converter.



N0.811,oo65 EATENTEEJAN.3o,19o6.

' G. T. WALKER.

CONVERTER.

APPLICATION FILED JAN.10, 1905.

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No. 811,006. PATENTED 31111.30, 1906. G. T. WALKER.

CONVERTER.

APPLICATION FILED JAN. l0, 1905.

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TTNTTFD STATES PATENT ill CONVERTER.

No. 81 1,006. Specification of Application filed January lO,

To @ZZ whom, z'ft may con/cern:

Be it known that I, GEORGE T. WALKER, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Converters g and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of. reference marked thereon, which form a part of this specification.

My invention relates to metallurgy, but more particularly to "converters, and has for its object to provide a device of this class by means of which all the slag and impurities can be removed from the metal.

With this object in view my invention consists in the novel construction of the converter, particularly in the twyers, and also in the construction of the converter providing for the egress of the slag.

My invention also consists in certain other novel features of construction and in combinations of parts, which will be first fully described and afterward specifically pointed out in the appended claims.

Referring to the accompanying drawings, Figure l is a vertical longitudinal sectional view of a converter constructed in accordance with my invention. Fig. 2 is a horizontal sectional view taken on line 2 2 of Fig. l. Fig. 3 is a top plan of converter, showing slagreceptacle partly in section. Fig. 4 is a fragmentary side elevation of the converter, showing arrangement of pipes for twyers; and Fig. 5 is a detail view of one of the catches or fastenings on converter.

Like numerals of reference indicate the same parts throughout the several figures, in whichl indicates the converter, which is suitably journaled in the support 2.

3 indicates the journals of the converter, which, as shown in Fig. 2, are hollow for a purpose which will be hereinafter fully described.

4 indicates the slag-receptacle, which, as shown, is located directly behind the converter and which is mounted on wheels 5 to run on tracks 6. The form of the slag-receptacle is such that it can be run up behind the converter and form a close contact therewith, the converter being provided with guidingstrips 7 to insure a proper meeting of the slag- Letters 1`' atent.

1905. Serial No. 240,420.

Patented Jan. 30, 1906.

receptacle and converter, said strips also insuring a closer contact and preventing a draft of air within the receptacle. At the rear of the receptacle I provide a series of peep-holes 8 for a purpose which will be hereinafter described, and below said peep-holes is a door 9 for the removal of the slag, while any suitable means may be employed for lmoving the receptacle up to or away from the converter.

Referring particularly to the converter and to Fig. 4, it will be seen that two pipes l0 and 1l are arranged to lead from the journal 3 to the twyer-boxes l2 and 13, while suitable cocks 14 and 15 are located in said pipes to control the amount of air or gases passing to the twyer-boxes. Adouble series of twyers 16 and 17 are thus formed one above the other, and, as shown, they enter the convorterat dif ferent angles for a purpose which will be hereinafter described. Located on lthe opposite journal 3 are two similar pipes IS, provided with cocks 19 and 20, which lead to the twyer, boXes 2l and 22 on the opposite side of the converter' and at a lower point than the twyers 16 and 17. The twyer-boXes 21 and 22 provide for a double series of twyers 23 and 24 and enter the converter at different angles, as shown. 25 and 26 indicate the supply-pipes for the twyers,which, as shown, are provided with suitable cocks 27. Located above the twyers 23`and 24 is a door 28, hinged at 29, as shown, and the converter is provided with a removable bottom 30, which is secured by means of suitable fastenings 31. Keyed or otherwise suitably secured to the door 28 is a shaft 32, extendingbeyond the side of the slagreceptacle, and on the outer end of said shaft is a crank or wheel 33 for revolving or turning said shaft. A small ratchet-wheel 34 is provided on said shaft, and a pawl 35 is arranged, as shown, to engage said pawl to hold the shaft against rotation.

Having thus fully described the several parts of my invention, its operation is as follows: The metal having been run into the converter, air or gases are admitted to the same through the twyers 23 and 24, which air or gases enter the metal at different angles with sufficient force to agitato the metal and give the same a swirling motion, which carries the slag and impurities to the top of the metal. The air or gases entering the metal through the twyers 16 and 17 assist in agitating the metal. The converter is turned on its axis or journals until the door 2S is in the relative position shown in Fig. 1 ,which is IOO IIO

on a line with the peep-holes 8 in the slag-re ceptacle. When in this position, the twyers 16 and 17 are above the surface of the metal. The door 28 is then raised, as shown in dotted lines in Fig. l, by means of the crank or wheel 33, which allows a view to be had from the peep-holes into the interior of the converter, and the air or gases are admitted again to the converter at diiferent angles 1o through the twyers 16 and 17, which air or gases strike the surface of the metal with suflicient force to blow the slag and impurities from the surface of the metal through the door 28 in the converter and into the slag-re- I5 ce tacle. rIhis operation is continued until al the slag and impurities have been removed from the metal, the process being visible through the peep-holes. After the metal has thus been deprived of its impurities the zo door 28 is closed, the slag-receptacle detached and run back, and the converter revolved, so as to run the metal out of the mouth thereof in the usual manner.

Having thus specifically set forth my invention, I do not wish to be understood as limiting myself to the exact construction herein set forth, as various slight changes may be made therein by those skilled in the art which would fall within the limit and l 3o scope of my invention, and I consider myself clearly entitled to all such changes and modifications.

l/Vhat I claim as my invention, and desire to secure by Letters Patent of the United 3 5 States, is-

1. The combinationwitha converter, of a slag-receptacle associated therewith, said slag-receptacle being arranged in close contact with said converter in such manner as to 4o exclude the air from said receptacle as far as possible, means in said converter for agitating the metal, and means for removing the slag and impurities from the metal in the converter into the slag-receptacle, substantially as described.

2. The combination with a converter of a slagereceptacle associated therewith, means for facilitating a close contact between said converter and said slag-receptacle in order to 5o exclude the air from said slag-receptacle as far as possible, and means in said converter for removing the slag and impurities from the converter into said slag-receptacle, substan tially as described.

3. The combination with a converter of a slag-receptacle associated therewith, said slag-receptacle being constructed to form a close contact with said converter to exclude the air therefrom as far as possible, a double 6o set of twyers in said converter for leading air into the metal to agitate and purify the same, and means for driving the impurities from the metal into the slag-receptacle, substantially as described.

4. The combination with a converter, of a 6 5 slag -receptacle associated therewith, said converter being provided with an opening leading into said slag-receptacle, a double series of'twyers in said converter constructed to lead air or gases into the metal to agitate 7o and purify the same, and a double series of twyers in said converter constructed and arranged to drive the impurities from the surface of the metal into th said slag-receptacle, substantially as described.

5. A converter having twyers arranged for agitating the metal, said converter being provided with an opening therein, and twyers independent of the agitating-twyers for driving the impurities from the metal through 8o the said opening in the converter, substantially as described.

6. The combination with a converter, of a double series of twyers arranged one above the other, and so located as to lead air to the 8 5 converter below the surface of the metal, to agitate the metal and to drive the slag and impurities to the top thereof, a double series of twyers arranged one above the other and so located as to lead air into the converter 9o against the surface of the metal to drive the slag and impurities therefrom, substantially as described.

7. A converter substantially rectangular in horizontal section, twyers arranged to lead air into the converter below the surface of the metal to agitate the same, and twyers arranged to lead air into the converter against the surface of the metal to drive the slag'and impurities therefrom, said converter being Toc provided with an opening through which the slag and impurities are driven, substantially as described.

S. rThe combination with a converter, of a slag-receptacle associated therewith, said slag-receptacle being constructed to form a close contact with said converter in order to exclude the air from said slag-receptacle as far as possible, said converter being provided with an opening leading into said slag-recep- [1c tacle, and means in said slag-receptacle for allowing a view of the interior of the converter through the said opening therein, substantially as y described.

In testimony whereof I affix my signature 1 15 in presence of two witnesses.

GEORGE T. WALKER.

Witnesses:

C. HUGH DUFFY, EMMA F. WALKER. 

